In electronic applications that require a lot of energy, a single battery cell is often insufficient. To meet the high energy demands of the automotive industry and stationary storage systems, high-performance battery packs are used. These packs are assembled using the matryoshka principle: Battery cells are grouped into modules, which are then combined into packs that are installed in electric vehicles. This module will teach you about the components of battery modules and packs, as well as what to consider when developing a battery system.